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Calculation

Posted by PakProtector on June 26, 2017 at 09:09:35:
It looks like you're minimum voltage occurs when the 25k pot is effectively shorted. I would rather not vary the current draw on the negative rail depending on its output setting. Also, 15k and 47k looks to have a minimum output slightly more negative than 40V...so I am not quite sure how you get this pup down to 32V. It could be that the 15k/10 uF RC is knocking down a lot of ripple, and that there exists plenty of it at the 47 uF doubler stack.

I tend to want more capacitance than you have shown...like 10x, and at a minimum 5x...:)
cheers,
Douglas